#define _CRT_SECURE_NO_WARNINGS 1
#include<iostream>

using namespace std;

void swap(int& x, int& y)
{
	if (x == y)
	{
		return;
	}
	int t = x;
	x = y;
	y = t;
}

int main()
{
	int x, y;
	cin >> x >> y;
	swap(x, y);
	cout << x << ' ' << y;
	return 0;
}